Lamp



July 8 1924.

F. C. MONROE LAMP Filed Aug. 9, 1920 INVENTOR ATTORNEY Patented July 8, 1924.

PATENT- OFFICE.

FRANK QMONR-OE, OF ENDERLIN, NORTH DAKOTA.

LAMP.

Application filed August 9, 1920. Serial No. 402,156.

ful Improvements in Lamps, of which the.

following is a specification.

My present 1nvent-1on has reference to a flash lamp, which is primarily devised for use in signalling by railroad men but, of course, may be employed by others having use for such devices.

The primary object is the production of a signalling flash lamp having means whereby the same may be strapped on the wrist of the wearer, the battery received in the inner coat pocket and the conductor between the battery and the lamp leading through the wearers coat sleeve, so that the battery and conductor are thus protected, the lamp being provided with a simple switch of a novel formation whereby the same may be easily turned on or off.

The foregoing, and other objects which will appear as the nature of the invention is better understood, may be accomplished by a construction, combination and operative arrangement of parts, such as is disclosed by the drawings.

In the drawings Figure 1 is a View illustrating the application of the improvement.

Figure 2 is an enlarged elevation of the lamp.

Figure 3 is a sectional view approximately on the line 33 of Figure 2.

Figure 4 is a sectional view approximately on the line H of Figure 3.

Figure 5 is a detail view illustrating the socket connection for the conductors which permits of the lamp being removed from the wrist of the user without necessitating the removal of the battery from the wearers pocket or the main portion of the conductor from the wearers coat sleeve.

As disclosed by the dotted lines in Figure 1 of the drawings, the battery for the lamp, indicated by the numeral 1, is arranged in the inner coat pocket of the wearer. The conductors 2 from the battery are passed over the inner surface of the coat through the sleeve thereof. Two conductors are employed, the longer one being, as stated, in the sleeve of the user, and the shorter leading d rec ly to th lamp bulb and i cas g- A socket 3 connects the longer conductor 2 with the shorter conductor 4. Of course, both conductors are encased in a suitable insulator, and spring means are employed for holding the plugs 55 of the conductors in engagement with each other in the socket, one of the plugs, of course, being fixed in the socket, and this last mentioned plug is connected with the conductor 2.

The lamp casing is indicated by the numeral 6 and has an inwardly arched or concaved base 7.. This base may have secured thereto an elastic band whereby the same can be clamped on the wrist of the user or the said base may be riveted to a glove designed to be inserted or drawn over the users hand. Therefore the sustaining means for thelamp casing is broadly indicated by the numeral 8.

One of the conductors 4 is grounded to the casing, as at 9. The second conductor wire 4 is jointed to a contact plate 10 that is secured upon an insulating block 11 in the casing, to one side of the socket 12 of the lamp bulb 13, which is removably secured centrally in the outer face of the casing, in the usual manner.

Arranged for slidable movement through the casing is a push block 14. The block is of insulating material, having its ends reduced, as at 15 respectively, and the said reduced portions being guided through openings in the sides of the casing. The ends 15 are free moving through their openings,

that is the same are not only permitted a free longitudinal movement but also permit of the block 14 being moved in the direction of the socket 12 and terminal plate 10. The socket 12 is provided with the usual contact element, and let into the outer face of the block 14 is a metallic switch plate 16. The switch plate, when the block is moved to one position is designed to engage with the terminal of the socket 12 and with the terminal 10, thus completing a circuit through the battery and lamp and when moved to another position is brought out of engagement with the contact 10, thus breaking the circuit. The inner or under face of the block 14 is provided with a transverse notch, the inner wall of which being inclined from the ends thereof to the center, but the point, at the center of the opposed inclined walls is disposed a considerable distance inward of the lower edge o e ack 14. The isel ned. Wa l 0 distinct-ion, are indicated *by the numeral 17, and the straight walls or'shoulders at the ends thereof are indicated by the numeral 18. Having offset or angle ends 19, that are secured to the sides of the casing, is a flat spring member 20. The spring member is approximately centrally bent upon itself to provide a finger 21 that is received in the notch of the block 14. This finger at all times exerts a tension against the block to force the bridge or switch plate 16 thereof into engagement with the terminals of the lamp bulb or the terminal 10. The spring 20 may be bowed to insure the positive engagement of the finger 21 thereof with the walls of the transverse notch in the block or push member 14;.

The lamp casing may be readily secured on the wrist of the user. The socket permits of the ready connection of the conductors, and by simply moving the block 14 in one of two directions, the current may pass through the bulb and battery to light the lamp and when moved in another direction will turn the light off. When not required for immediate use, the lamp casing may be detached from the person of the wearer without interfering with the arrangement of the battery and the major conductor.

Having thus described the invention, what I claim, is

A device of the character described comprising a casing having openings therein at diametrically opposite points, a bar arranged in the casing and capable of longitudinal movement therein and having its ends reduced and slidably disposed in the openings, the under face of the bar being provided with an Ntshaped recess, a horizontally arranged bracket extending transversely of the casing and arranged below the *bar, an upstanding resilient finger carried by the bracket'a'nd arranged in the M- shaped recess, a fixed contact arranged in the casing and adapted to be connected with a source of electrical energy, and a Contact plate carried by the bar and adapted to en-- gage the fixed contact, a resilient finger serving to normally urge the bar to a position where the contacts will be engaged, and to lock said bar in such position.

In testimony whereof I aflix my signature.

FRANK C. MONROE. 

